Music holder and turner.



No. 823,708. PATENTED JUNE 19, 1906. E. S. STEM.

MUSIC HOLDER AND TURNER.v

APPLICATION FILED Nov.11, 1905.

NITET) STATES PATENT OFFICE.

EDGAR S. STEM, OF ALDERSON, PENNSYLVANIA, ASSIGNOR OF TIVO- FIFTHS TOTHOMAS S. BOYD, OF ALDERSON, PENNSYLVANIA.

MUSIC HOLDER AND TURNER.

Specification of Letters Patent.

Patented June 19, 1906.

Application filed November 11, 1905. Serial No. 286,824.

To a/ZZ whom it may concern:

Be it known that I, EDGAR S. STEM, a citizen of the United States,residing at Alderson, county of Luzerne, State of Pennsylvania, haveinvented a new and useful Music Holder and Turner, of which thefollowing is a speciiication.

This invention relates to music-leaf turners, and has particularreference to that type of such devices which employ leaf-turning armshaving springs for actuating them in their leaf-turning movements andmanuallycontrolled devices for releasing said arms one by one to permitthem to turn the leaves to which they are temporarily connected.

One of the objects of my present invention is to provide an improvedescapement or detent and release mechanism for controlling the movementsof the arms.

Another object of the invention is to provide an improved folding.leaf-carrying arm that will be reliable in operation and certain toremain in its angular position when adjusted to hold a leaf.

To these ends the invention consists in the construction and combinationof parts, substantially as hereinafter described and claimed.

Of the accompanying drawings, Figure l is a plan view of so much of amusic-leaf turner embodying my invention as is necessary to illustratethe improvements herein claimed, the top of the case being removed. Fig.2 is a front elevation of the same, the case being in section. Fig. 3 isa detail elevation of the escapement devices as seen from the inside ofthe case indicated in Figs. 1 and 2. Fig. 4 is a perspectiveview of thesame. Fig. 5 is a detail elevation of the jointed portions of one of theleaf-turning arms, the outer member of the arms being turned up in theposition which it occupies when engaged with a leaf. Fig. 6 represents asection on line 7 7 of Fig. 5.

Similar reference characters indicate the same or similar parts in allthe views.

A portion of the base of the device is represented at 20, said basebeing adapted to rest on the book or music rest of a piano, as usualwith such devices. In practice a holder, clamp, or back-rest for themusic book or sheets rises from the said base and may be of a foldingtype, if desired, to render the device more readily portable. Suchholder or I clamp is not illustrated or described herein, as it is notnecessary to an understanding of the improvements now claimed.

Suitably secured to the base is a case 2l, preferably having a curvedfront, as indicated in Fig. l, said case having a slot 22, through whichthe leaf-turners extend and which slot serves as a guide to insuremovement of said turners in a horizontal plane. A post 23 is secured inthe center of the ease, and to this post is secured the inner ends ofthe springs of the leaf-turners. Said leaf-turners each comprise aninner member 24 and an outer member 25, Ointed thereto, as presentlydescribed. The spring 26 is shown as integral with the inner member 24,the whole being composed of a length of resilient wire. I do not limitmyself, however, to this construction. The outer member 25 is also shownas consisting of a single piece of wire. It is doubled upon itself toform an elongated loop 27 and is then twisted and its outer ends leftstraight to form fingers 28, between which a leaf is inserted and held.The two members are connected by a clip 29, consisting of a piece ofsheet metal having two parallelears 30, united by a rivet 31, passingthrough the loop 27 and having a portion bent around the end of member24. The extreme end of the member 24 is bent at an angle, as at 32, andin assembling is passed through a hole in the clip before the sides arebent around the wire, thereby preventing the clip from turning on themember 24. Therefore when the parts are in the position indicated inFig. 5 the member 25 will be in position to swing or turn a leaf. Theclip 29 is formed with a slot 33 to receive the lower end of the loop 27when the member 25 is in upright position to prevent said member fromturning down but when it is desired to fold said outer member 25 it isfirst slightly lifted to clear the lower end of the loop 27 from theslot 33, and then said member may be turned either outward or inwardparallel with the member 24.

The escapement device illustrated in Figs. 1 to 4, inclusive, comprisesthe following parts: A lever 34 is pivoted at 35 to an ear 36, securedto the outer wall of the case 2l, and extends through a vertical slot37, adjacent the slot 22 and below it. Said lever is formed with an ear38, extending upward sufficiently to act as a detent for the leaf- IOOturners in the manner presently described when the lever is actuated.The portion of the lever inside the case is formed with alaterally-extending arm 39, which engages under a lug 40 of a dog 41,pivoted at 42 inside the case and having a portion which extends upwardacross the slot 22 and normally held by a spring 43 across the path ofthe leafturning arms which are guided by said slot. The said dog 41 issufficiently inclined, as at 44, to cause an arm 24 when being returnedto starting position to oscillate the dog on its pivot and permit saidarm to Hass, after which the spring 43 automatica y returns the dog tothe position shown in Fig. 3. As the detent 38 1s normally depressed allthe arms 24 can pass to starting position, Where they will be held bysaid dog. The spring 43 is coiled about the fixed pivot pin or screw 42and has one end bearing on the lug 40 of the dog and its other endbearing on the lever 34, adjacent to the detent-ear 38 thereof, therebytending to normally hold the detent down and the engaging or retainingwall ofthe dog up across the slot 22. The portion of the spring whichbears on the lever 34 is not a necessity, however, since anyspring-pressure exerted on the lug 40 ofthe dog will be transmitted tothe arm 39 of the lever, so as to normally hold the detent 38 down. Whenthe lever 34 is positively actuated by depressing its outer end, thedetent 38 is raised, so as to be interposed between the outermost arm 24and the next one, and at the same time the dog 41 is positivelyoscillated to release the outermost arm and permit it to be swung aroundby its s ring 26 and turn the leaf which is engaged getween the ingers28 thereof.

Suitable means are employed to limit the movements of the lever 34, suchas the ends ofthe slot 45 in the ear 36, through which slot the leverextends, as indicated in Fig. 4.

Owing to the fact that the lever 34 extends through the casesubstantially at a right angle thereto and below the guideway or slot22, the upwardly-extending ear or detent 38 is adapted to be quicklyraised, so as to be interposed between the arm and to hold them by aconveniently-located finger piece or key outside of the case in positionto be instantly depressed when desired, so as to release an arm. Such afinger piece or key is indicated at 46 and may comprise a late or barextending over the outer end of t e lever 34 and pivoted to the base at47.

The detent and the dog each has its own independent pivot, so that thepressure of the outermost arm will be borne by the pivot of the dog, andthe pressure of the next arm or arms will be borne solely by the lever.

The spring 43 is coiled about the ivot 42 and has one end bearing downupon t e inner end of the lever 34 and the other end bearing down uponthe lug 40 of the dog 41. Therethe slot 22.

fore said s ring acts not only to normally raise the ot er end of thedog 41, but also acts to depress the detent 38; but when the key 46 isdepressed, the relative positions of the detent and dog will bereversed-that is the detent will be raised and the dog will bedepressed.

The means for returning the arms to starting position comprise a pinion48, mounted on the post 23 and having an arm 49, provided with anupturned end 50, projecting above (See Fig. 2.) A returning-lever 51,pivoted at 52 to the case and having a Enger-piece 53, is formed with asegmentgear 54, meshing with the pinion 48. It will now be readilyunderstood that when the lever 51 is actuated in the direction shown bythe arrow in Fig. 1 the pinion 48 and the arm 49 will be moved inopposite direction, so that the end 50 of the arm 49 will swing theturning-arms 24 around to the right.

1 Having now described my invention, I claim- 1. A device of thecharacter described, comprising a plurality of spring-actuated arms, acase having a slot forming a guideway for said arms, a lever extendingthrough the case below said slot and having a detent and alaterally-extending arm inside the case, a dog pivoted adjacent the slotand having a lug engaged by said arm of the lever, and a s ring fornormally holding the dog across t e slot. i

2. A device of the character describe comprising a plurality ofspring-actuated arms, a case having a slot forming a guideway for saidarms, a lever extending through the case below said slot and having adetent and a laterally-extending arm inside the case, a dog pivotedadjacent the slot and having a lug engaged by said arm ofthe lever, aspring IOO yand means for actuating the lever to reverse the relativepositions of the detent and dog.

3. A device of the character described, comprising a case having ahorizontal slot and a vertical slot adjacent thereto, a plurality ofspring-actuated leaf-turning arms extending through said horizontalslot, a lever extending through the vertical slot and having a detentand a laterally-extending arm inside the case, an independentlypivoteddog having a lug engaged by said arm of the lever, and a spring coiledabout the pivotpin of the dog and bearing upon the said lug and upon thelever adjacent to its detent and normally holding said lever and dog, inengagement.

4. A device of the character described, comprising in its construction ajointed leafturning arm the inner member having ears, a pin and a slotbelow said pin, the outer memer having an elongated slot through whichsaid pin passes, the inner or lower end of said outer member beingadapted to protrude through the slot of the inner member when in uprightposition.

5. A jointed arm for a leaf-turning meehanism comprising an outer memberhaving a loop and means for engaging a leaf, and an inner member havingears and a pin extending through said loop and formed with an opening toreceive the lower end of said loop when the outer member is turned at anangle to the inner member.

6. -A jointed arm for a leaf-turning meehanism comprising an innermember having a olip rigidly secured thereto, said clip having earsconnected by a Cross-pin or rivet and formed with an opening below saidpin, and an Outer member comprising a wire doubled and twisted andhaving leaf-engaging ngers, the doubled end of the wire being formed asa loop embracing said pin and adapted to enter the opening of the clip.

In testimony whereof I aiiix my signature in presence of two witnesses.

EDGAR S. STEM.

Witnesses:

F. F. REEsE, R. H. MITCHELL.

